Brown Fused Alumina Bfa in Different Grades for Different Applications

Product Details
Customization: Available
Natural Abrasive Type: Natural Corundum
Artificial Abrasive Type: Corundum Abrasives
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Registered Capital
1000000 RMB
Plant Area
101~500 square meters
  • Brown Fused Alumina Bfa in Different Grades for Different Applications
  • Brown Fused Alumina Bfa in Different Grades for Different Applications
  • Brown Fused Alumina Bfa in Different Grades for Different Applications
  • Brown Fused Alumina Bfa in Different Grades for Different Applications
  • Brown Fused Alumina Bfa in Different Grades for Different Applications
  • Brown Fused Alumina Bfa in Different Grades for Different Applications
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Basic Info.

Model NO.
F8-F1200, P12-P2500, 0-1mm, 1-3mm,3-5mm,5-8mm, etc
Function
Grinding Polishing Sandblasting
Source
Artificial Abrasives
Particle Size
Mill
Hardness
Conventional Abrasive
Crystal Color
Brown
Basic Mineral
Alpha- Al2O3
Crystal System
Hexagonal
Mohs Hardness
9
Density
More Than 3.90g/cm3
Micro Hardness
Hv1800-2200 .
Usage
Polishing, Grind, Sand Blasting, Refractory
Transport Package
25kg P.P Bag + Jumbo Bag, 25kg Paper Bag +Pallet.
Specification
F8-F1200, P12-P2500, 0-1mm, 1-3mm,3-5mm,5-8mm, etc
Trademark
kumthai
Origin
Zhengzhou, China
HS Code
2818101000
Production Capacity
10000tons / Month

Product Description

Brown Fused Alumina BFA (also called Brown Corundum Brown Aluminium Oxidefor Vitrified/Resin Bond, Grinding Polishing Sandblasting Refractory, in Different Types Grades for Different Applications


Brown fused alumina (A)
 is produced by fusion of bauxite in an electric arc furnace at high temperatures. The brownish coloured product shows high hardness as well as extreme toughness. The materials are used to grind metals of high-tensile strength such as steel, annealed malleable iron and hard bronze. It can also be used as high-class refractory.
 
Grain Usages and Types 
Usage For vitrified wheels For organic wheels For coated abrasives For refractory materials
Type A A-B A-P A-R
 
 
Physical Characteristics
Item Basic mineral Crystal system Crystal color Mohs 
hardness
Density
Brown aluminium oxide α- Al2O3 Hexagonal Brown 9 3.90g/cm3
Item Micro hardness Electrical 
resistivity
Grinding ability(compared with
 diamond as one)
Linear expansion 
coefficient(when 900
ºC α•10-6k-1)
Brown aluminium oxide HV1800-2200 1014-1016Ω•cm 0.10 7.6
 
 
Chemical Composition
GB/T 2478-2008
Type Grit Chemical Composition(%, by weight)
Al2O3 TiO2 CaO SiO2 Fe2O3
A F4-F80 95.00-97.50 1.70-3.40 0.42 1.00 0.30
F90-F150 94.50-97.00
F180-F220 94.00-97.00 1.70-3.60 0.45 1.00 0.30
F230-F800 93.50 1.70-3.80 0.45 1.20 0.30
F1000-F1200 93.00 4.00 0.50 1.40 0.30
A-B F4-F80 94.00 1.50-3.80 0.45 1.20 0.30
F90-F220 93.00 1.50-4.00 0.50 1.40 0.30
F230-F800 92.5 4.20 0.60 1.60 0.30
F1000-F1200 92.00 4.20 0.60 1.80 0.30
A-P P12-P80 95.00-97.50 1.70-3.40 0.42 1.00 0.30
P100-P150 94.50-97.00
P180-P220 94.00-97.00 1.70-3.60 0.45 1.00 0.30
P240-P800 93.50 1.70-3.80 0.45 1.20 0.30
P1000-P1200 93.00 4.00 0.50 1.40 0.30
P1500-P2500 92.50 4.20 0.55 1.60 0.30
A-R 0-1mm 94.00-97.50 1.50-3.80 0.45 1.40 0.30
1-3mm 94.00-97.50 1.50-3.80 0.45 1.40 0.30
3-5mm 94.00-97.50 1.50-3.80 0.45 1.40 0.30
5-8mm 94.00-97.50 1.50-3.80 0.45 1.40 0.30
Note: Special requirement on chemical composition can be satisfied through discussion.

 
Guarnteed bulk density range of coarse grains(A / A-B, g/cm3)
Grit Grade
Roll Crushing Ball Mill BMK
F12 1.84±0.05 1.92±0.05 2.00±0.05
F14 1.83±0.05 1.91±0.05 1.99±0.05
F16 1.81±0.05 1.90±0.05 1.98±0.05
F20 1.78±0.05 1.87±0.05 1.98±0.05
F22 1.76±0.05 1.85±0.05 1.96±0.05
F24 1.74±0.05 1.84±0.05 1.94±0.05
F30 1.72±0.05 1.81±0.05 1.90±0.05
F36 1.70±0.05 1.79±0.05 1.87±0.05
F40 1.68±0.05 1.76±0.05 1.85±0.05
F46 1.65±0.05 1.75±0.05 1.83±0.05
F54 1.63±0.05 1.73±0.05 1.81±0.05
F60 1.62±0.05 1.72±0.05 1.79±0.05
F70 1.60±0.05 1.69±0.05 1.78±0.05
F80 1.57±0.05 1.65±0.05 1.76±0.05
F90 1.54±0.05 1.64±0.05 1.74±0.05
F100 1.51±0.05 1.60±0.05 1.70±0.05
F120 1.49±0.05 1.59±0.05 1.68±0.05
F150 1.47±0.05 1.57±0.05 1.65±0.05
F180 1.45±0.05 1.56±0.05 1.61±0.05
F220 1.43±0.05 1.53±0.05 1.59±0.05
Note: Special requirement on bulk density can be satisfied through discussion.

 
Guarnteed bulk density range of coarse grains(A-P, g/cm3)
Grit Grade
Roll Crushing Ball Mill BMK
P12 1.80±0.05 1.88±0.05 1.96±0.05
P16 1.78±0.05 1.85±0.05 1.94±0.05
P20 1.76±0.05 1.83±0.05 1.93±0.05
P24 1.73±0.05 1.81±0.05 1.92±0.05
P30 1.70±0.05 1.79±0.05 1.90±0.05
P36 1.68±0.05 1.76±0.05 1.88±0.05
P40 1.65±0.05 1.73±0.05 1.86±0.05
P50 1.62±0.05 1.71±0.05 1.83±0.05
P60 1.59±0.05 1.67±0.05 1.81±0.05
P80 1.57±0.05 1.64±0.05 1.77±0.05
P100 1.55±0.05 1.62±0.05 1.73±0.05
P120 1.52±0.05 1.59±0.05 1.70±0.05
P150 1.49±0.05 1.55±0.05 1.66±0.05
P180 1.47±0.05 1.52±0.05 1.62±0.05
P220 1.45±0.05 1.50±0.05 1.58±0.05
Note: Special requirement on bulk density can be satisfied through discussion.

Brown Fused Alumina Bfa in Different Grades for Different Applications
Brown Fused Alumina Bfa in Different Grades for Different Applications
Packaging & Shipping of BFA:

1. 25KG P.P BAG+ 1MT JUMBO BAG
2. 25KG P.P BAG+ 1MT PALLET
3. 25KG PAPER BAG+ 1MT PALLET
4. According to customers' requirements
5. Free samples or Sample orders usually shipped by Express like FedEx/TNT...

Brown Fused Alumina Bfa in Different Grades for Different Applications
Our Advantages:
 
1.With many years of export experiences and well-deserved reputation, we provide clients with stable product quality and professional technical advice.
2.OEM, ODM services and our own brand (KUMTHAI) can be provided according to customers' requirements.
3. Management System Certification: ISO 9001, ISO 9000, ISO 14001, ISO 14000.
4. Products with different grades and sizes can meet different market users' demand for different product quality and prices.
5. We guarantee that our products are good quality with competitive prices, and delivery in time.
6. Technical research and development strength: The company's employees have the relevant discipline background of abrasive grains and superhard materials, and know more about abrasives and grinding. They would like to provide better services for customers to meet their different needs. What's more, the company invites senior research experts from Zhengzhou Research Institute for Abrasives & Grinding Co., Ltd. and Henan University of Technology as product consultants, which can help to achieve in-depth product technical cooperation with customers and better matching demands, combined with China's industrial advantages.
 
Our Services:
 
1. Your inquiries will be replied in 24 working hours;
2. Free samples offered in certain quantity and delivered within 10 days;
3. Packing list, invoice and C.O. or other information you need can be provided at the top speed;
4. Any questions about products and technology will be answered sincerely and professionally.
5. Related products sourcing services.
 
FAQ:
 
Q1: Can you offer free samples?
A: Yes, free samples can be offered in certain quantity, but big samples and special products with charge.
 
Q2: Can I have a sample order for your products?
A: Yes, we welcome sample orders to test and check the quality.
 
Q3: What is your delivery time?
A: Sample order: Usually within 7 working days
Mass order: Within 25 days after 30% deposit received for conventional products. Negotiation for special products.
 
Q4: What is your payment terms?
A: T/T, D/P, L/C and so on.
 
Q5: Do you offer customized products according to customer's requirements?
A: Yes, OEM, ODM services and our own brand (KUMTHAI) are provided according to customers' requirements.
  
Q6: Are all your products on the website?
A: Not all the products on the websites. For some related products or the sizes that are not included on the website, please make an inquiry separately to our emails or any social media.

Related Corundum Products: White Fused Alumina(White Aluminium Oxide/White Corundum)

Brown Fused Alumina Bfa in Different Grades for Different Applications
 

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